Three and one-third one-httndredths to jeremiah wilfred heffernan



1. omvusmw. HEAD LAMP ADJUSTER.

AFPLICATEON FILED MAR. 5- 198 Patented May 20, 191 9.-

t O w a u n 3 witnesses UNITED sTA'rEs PATENT OFFICE.

I JOHN ANDREW ORMISTON, OF CALGARY, ALBERTA, CANADA, ASSIGNOB F THIRTY-THREE AND ONE-THIRD ONE-HUNDREDTHS OI EDMONTON, ALBERTA, CANADA.

HEAD-LAMP ADJUSTER.

Specification of Letters Patent.

Application filed March 5, 1918. Serial 1%. 220,535.

. in is a specification.

his invention relates to head lamp adjusters, the object in view beingto produce a simple device which may be applied to any ordinary headlamp for use on an auto-- mobile, motor truck,-locomotive, street car,

'or other vehicle, the mam object being to prevent blinding rays oflight from being thrown from a head lamp in such manner as to interfere"with the drivers of other machines or pedestrians, and traflic ingeneral, the device being designed to comply with the trafiicregulations which, in some localities, require that the rays of lightfrom 'a head lamp must not be elevated more than twenty-four inchesabove the ground at a distance of seventy or eighty feet in front of thevehicle carrying the lamp.

' A further object of the invention is to increase the efficiency of thelamps and the illuminating properties thereof by concentrating the raysof light upon the road for a considerable distance in front of thevehicle.

A further object of the invention is to so construct and arrange theelements of the invention as to not interfere with the vision of thedriver and occupants of the vehicle u on which the lamp is carried.

With the above and other objects in view, the invention consists in thenovel construction, combination, and arrangement of parts, as hereindescribed, illustrated and claimed.

In the accompanying drawing,

Figure 1 is a front elevation of a head lamp equipped with thisinvention.

Fig. 2 is a vertical diametrical section through the same.

Theimproved device comprises a screen A of opaque material, preferablymetal, the said shade slightly exceeding one-half of a disk and havlng aslightly arched bottom edge, as shown, the highest point of the archbeing below the center of the bulb L of the lamp, as shown in thedrawing. In addition to the screen A, the device comprises 'spondjng aninclined reflector C which is of inverted dish shape, the front edgethereof being arched as indicated by dotted lines 1n Fig. 1, and therear edge thereof being arched to a greater degree and lying in contactwith the forward face of the reflector H of the lamp as shown in Fig. 2.The forward edge of the reflector C lies in contact with or 1n closeproximity. to the screen A ing a fixed partof the attachment. Pins Gextending backwardly from the screen A serve to hold the whole device inplace in the lamp. and preventv the turning of said screen and thereflector C carried thereby, the main reflector H of the lamp beingformed with holes in which said pins G are inserted.

Secured to the rear face of the screen A is a license numberholdingframe B comprising the flanges or lips D which are disposedradially with respect to the center of the lamp'as indicated in Fig. 1.An arcuate license number plate E is inserted in the PatentedMay 20,1919.,

T0 JEREMIAH WILFRED HEFFEBNAN,

and is fixedly secured to said screen, formplate holder and is formed oftranslucent material, such as opaque, or frosted or ground glass, thenumbers on the plate E being visible through an opening E of correshapeformed in the screen A. The reflector C has its lower face nickel platedor otherwisehighly polished, so as to deflect the rays of light from thebulb L downwardly, thuspreventing the elevation of the rays of lightfrom the lamp. Said reflector C is formed with perforations or openingsF, so as to provide for the necessary illumination of the interior ofthe body of the lamp above said reflector Gin order to correspondinglyilluminate the number plate E. The body of the lamp is represented at Iand the front thereof is covered with the usual glass or lens K.

\From the foregoing description, taken in At the same aoaeoe haveperfect visionas to the general traiflc. Furthermore, the license nunrer of the vehicle will be clearly displayed by night, as

Well as by day.

I claim 1. The combination with a head lamp, of an opaque screensubstantially in the form of one-half of a disk arranged directly behindthe front glass or lens of the lamp and extending below the center ofthe light bulb, an inverted dish shaped reflector carried by andextending rearwardly from said screen over the light bulb and having itsrear edge in contact with the main reflector of the lamp, said screenbeing formed with a display opening above the main opening, said dishedreflector being formed with light transmission openings to provide forthe illumination of that portion of thescreen having the displayopening.

2. The combination with a head lamp, of an opaque screen substantiallyin the form of one-half of a disk arranged directly behlnd the frontglass or lens of the lamp and extending below the center of the lightbulb,

an. inverted dish shaped reflector carried by and extending rearwardlyfrom said screen, said reflector extending from the screen rear- Wardlyover the light bulb and having its rear edge in contact with the mainreflector of the lamp, said screen being formed with an arcuate displayopening, a translucent number bearing p ate arranged behind saidopening, and plate holding means on the back of said screen, said dishedreflector being formed with openings to provide for the illumination ofsaid number plate.

In testimony whereof I affix my signature.

JOHN ANDREW ORMISTON.

